samba - Mar 2006 - how to mount network share at boot time with no user log in?

Hi, 
    Probably not the place to ask but here goes.

I'd like to know how to have windows mount a network share as the system 
comes up,  without having any users logged in.

reason:  we have a service which  runs in the background to render 
jobs,  it depends on being able to access files on our samba file 
servers.  currently the shares are only mounted when a user logs in on 
the windows machine.  If the user logs out,  the shares go away and the 
background rendering service dies.

thanks for your time,
greg